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Basic Math
Arithmetic
Fractions & Decimals
Ratios & Proportions
Percentages
Basic Number Theory
Pre-Algebra
Integers & Absolute Values
Factors & Multiples
Prime Factorization
Basic Equations & Inequalities
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Algebra
Linear Equations & Inequalities
Quadratic Equations
Polynomials & Factoring
Functions & Graphs
Systems of Equations
Trigonometry
Trigonometric Functions
Trigonometric Identities & Equations
Right Triangle Trigonometry
Unit Circle
Graphing Trigonometric Functions
Calculus
Limits & Continuity
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$-9-(5.8-13)$$
Evaluate
$-1.8$
Solution Steps
Subtract $13$ from $5.8$ to get $-7.2$.
$$-9-\left(-7.2\right)$$
The opposite of $-7.2$ is $7.2$.
$$-9+7.2$$
Add $-9$ and $7.2$ to get $-1.8$.
$$-1.8$$
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Factor
$-1.8$
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